Event between (145452) 05RN43 and star GA0920:18143536 with event index number of 2469218
Geocentric closest approach at 2025/08/27 11:31:19 UTC
J2000 position of star is 23:30:42.4 +02:00:21
Equinox of date position of star is 23:31:57.1 +02:08:25
Stellar brightness G=16.6,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 151 degrees from the moon.
Moon is 17% illuminated.
Apparent brightness V=19.8
[RECON map]
Object is 40.6 AU from the Sun
and 39.6 AU from the Earth.
Apparent velocity is 23.4
km/sec on the sky relative to the star, or,
2.9 arcsec/hr.
The 1-sigma error in the time of the event is 70 seconds.
The 1-sigma cross-track error in the shadow position is
1465 km.
The sky-plane scale is
28747.6 km/arcsec.
The object has an absolute magnitude Hv=3.7
Diameter=1086.5 km assuming a 5% albedo -- 47.1 sec chord
Diameter=443.5 km assuming a 30% albedo -- 19.2 sec chord
Dynamical classification is SCATEXTD
Star training set for 145452, (2025/08/27 11:32UT) Object RA Dec mag sep mel Fomalhaut 22:59:03.7 -29:29:08 1.2 32.60 126 Markab 23:06:02.4 +15:20:38 2.5 14.67 147 16 Psc 23:37:41.9 +02:14:41 5.7 1.42 152 PPM 174165 23:32:25.4 +02:30:17 7.3 0.37 151 PPM 174144 23:31:38.9 +02:08:05 9.7 0.09 151 145452 23:32:01.1 +02:08:51 16.6 151 Positions are for equinox of date
This table contains the target star visibility for the RECON
network. The observing range has been set to a maximum of
5.0 sigma about the mid-time.
The median site spacing is 31.2 km
RECON observability=0.9 and success probability=0.5%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Kamloops | 11:28:24 | -14.9 | AT | Down | 33.1 | 223.2 | Up | 11:22:03 - 11:34:44 | -946 |
| Kelowna | 11:28:21 | -14.9 | AT | Down | 33.3 | 224.5 | Up | 11:22:01 - 11:34:42 | -1038 |
| Peachland | 11:28:22 | -15.2 | AT | Down | 33.5 | 224.2 | Up | 11:22:01 - 11:34:42 | -1041 |
| Summerland | 11:28:22 | -15.2 | AT | Down | 33.5 | 224.4 | Up | 11:22:01 - 11:34:42 | -1056 |
| Victoria | 11:28:30 | -17.8 | AT | Down | 36.0 | 220.9 | Up | 11:22:10 - 11:34:51 | -1061 |
| Penticton | 11:28:21 | -15.2 | AT | Down | 33.5 | 224.6 | Up | 11:22:01 - 11:34:42 | -1065 |
| Oliver | 11:28:21 | -15.4 | AT | Down | 33.8 | 224.7 | Up | 11:22:00 - 11:34:41 | -1096 |
| Sleaford | 11:27:56 | -6.5 | NT | Down | 25.3 | 237.0 | Low | 11:21:35 - 11:34:16 | -1112 |
| Anarchist Mountain Observatory | 11:28:21 | -15.4 | AT | Down | 33.8 | 225.0 | Up | 11:22:00 - 11:34:41 | -1116 |
| Okanogan | 11:28:21 | -15.9 | AT | Down | 34.4 | 225.1 | Up | 11:22:00 - 11:34:41 | -1168 |
| Brewster | 11:28:21 | -16.1 | AT | Down | 34.7 | 225.0 | Up | 11:22:01 - 11:34:42 | -1188 |
| Manson/Chelan | 11:28:22 | -16.5 | AT | Down | 35.0 | 224.7 | Up | 11:22:01 - 11:34:42 | -1198 |
| Wenatchee | 11:28:22 | -16.8 | AT | Down | 35.4 | 224.8 | Up | 11:22:01 - 11:34:42 | -1236 |
| Ellensburg | 11:28:22 | -17.2 | AT | Down | 35.8 | 224.7 | Up | 11:22:02 - 11:34:43 | -1268 |
| Yakima | 11:28:23 | -17.5 | AT | Down | 36.1 | 224.9 | Up | 11:22:02 - 11:34:43 | -1304 |
| Toppenish/White Swan | 11:28:22 | -17.5 | AT | Down | 36.2 | 225.2 | Up | 11:22:01 - 11:34:42 | -1328 |
| The Dalles | 11:28:23 | -18.4 | Dark | Down | 37.1 | 224.8 | Up | 11:22:03 - 11:34:44 | -1379 |
| PNWRO | 11:28:18 | -16.9 | AT | Down | 35.7 | 227.0 | Up | 11:21:57 - 11:34:38 | -1399 |
| Maupin | 11:28:23 | -18.6 | Dark | Down | 37.4 | 225.1 | Up | 11:22:02 - 11:34:43 | -1420 |
| Sisters | 11:28:24 | -19.4 | Dark | Down | 38.2 | 225.1 | Up | 11:22:04 - 11:34:45 | -1488 |
| Bend | 11:28:23 | -19.4 | Dark | Down | 38.3 | 225.5 | Up | 11:22:03 - 11:34:44 | -1517 |
| Oregon Observatory | 11:28:24 | -19.6 | Dark | Down | 38.5 | 225.4 | Up | 11:22:03 - 11:34:44 | -1530 |
| Chiloquin | 11:28:25 | -20.6 | Dark | Down | 39.6 | 225.7 | Up | 11:22:04 - 11:34:45 | -1641 |
| Klamath Falls | 11:28:24 | -20.7 | Dark | Down | 39.8 | 226.0 | Up | 11:22:04 - 11:34:45 | -1675 |
| Cedarville | 11:28:20 | -20.2 | Dark | Down | 39.4 | 228.2 | Up | 11:21:59 - 11:34:40 | -1785 |
| Fall River/Burney | 11:28:23 | -21.2 | Dark | Down | 40.4 | 227.2 | Up | 11:22:03 - 11:34:44 | -1797 |
| Greenville | 11:28:22 | -21.5 | Dark | Down | 40.8 | 228.2 | Up | 11:22:01 - 11:34:42 | -1896 |
| Gimple | 11:28:22 | -21.4 | Dark | Down | 40.7 | 228.3 | Up | 11:22:01 - 11:34:42 | -1899 |
| Quincy | 11:28:22 | -21.6 | Dark | Down | 40.9 | 228.4 | Up | 11:22:01 - 11:34:42 | -1916 |
| Portola | 11:28:21 | -21.3 | Dark | Down | 40.7 | 228.9 | Up | 11:22:00 - 11:34:41 | -1941 |
| Reno | 11:28:19 | -21.1 | Dark | Down | 40.5 | 229.8 | Up | 11:21:58 - 11:34:39 | -1985 |
| Carson City | 11:28:19 | -21.3 | Dark | Down | 40.7 | 230.1 | Up | 11:21:58 - 11:34:39 | -2020 |
| Gardnerville | 11:28:19 | -21.4 | Dark | Down | 40.8 | 230.3 | Up | 11:21:58 - 11:34:39 | -2045 |
| Yerington | 11:28:17 | -21.0 | Dark | Down | 40.5 | 230.9 | Up | 11:21:56 - 11:34:37 | -2057 |
| Hawthorne | 11:28:16 | -20.9 | Dark | Down | 40.4 | 231.7 | Up | 11:21:55 - 11:34:36 | -2117 |
| Lee Vining | 11:28:17 | -21.5 | Dark | Down | 41.1 | 231.6 | Up | 11:21:56 - 11:34:37 | -2159 |
| Bishop | 11:28:15 | -21.3 | Dark | Down | 41.0 | 232.7 | Up | 11:21:55 - 11:34:36 | -2238 |
| Dunrhomin | 11:27:43 | -11.0 | NT | Down | 30.8 | 243.1 | Up | 11:21:22 - 11:34:03 | -2274 |
| Nikitin | 11:27:43 | -11.1 | NT | Down | 30.9 | 243.2 | Up | 11:21:22 - 11:34:03 | -2292 |
| CU-SBO | 11:27:43 | -11.1 | NT | Down | 31.0 | 243.2 | Up | 11:21:23 - 11:34:04 | -2297 |
| Beatty | 11:28:11 | -20.5 | Dark | Down | 40.2 | 234.7 | Up | 11:21:50 - 11:34:31 | -2329 |
| Patrick | 11:28:03 | -19.2 | Dark | Down | 39.1 | 238.5 | Up | 11:21:42 - 11:34:23 | -2558 |
| Wildwood | 11:28:17 | -23.2 | Dark | Down | 43.1 | 234.9 | Up | 11:21:56 - 11:34:37 | -2558 |
| Laughlin/Bullhead City | 11:28:06 | -19.8 | Dark | Down | 39.7 | 238.0 | Up | 11:21:45 - 11:34:26 | -2564 |
| Lake Havasu City | 11:28:05 | -19.9 | Dark | Down | 39.9 | 238.7 | Up | 11:21:44 - 11:34:25 | -2639 |
| Idyllwild | 11:28:11 | -22.0 | Dark | Down | 42.0 | 237.0 | Up | 11:21:51 - 11:34:32 | -2649 |
| Calipatria | 11:28:07 | -21.5 | Dark | Down | 41.5 | 238.6 | Up | 11:21:47 - 11:34:28 | -2745 |
| George/Scottsdale | 11:27:57 | -18.5 | Dark | Down | 38.6 | 241.4 | Up | 11:21:37 - 11:34:18 | -2784 |
| Yuma | 11:28:05 | -21.0 | Dark | Down | 41.1 | 239.7 | Up | 11:21:45 - 11:34:26 | -2814 |
Azimuth is measured in degrees eastward from north. North is at an azimuth of 0, due East is at an azimuth of 90 degrees, due South is 180, and due West is 270.
Do not use the listing below for the RECON CPC 1100 telescopes. This is provided for other non-team facilities.
Star training set for 145452, (2025/08/27 11:32UT) Object RA Dec mag sep mel Fomalhaut 22:57:39.6 -29:37:24 1.2 32.60 126 Markab 23:04:45.8 +15:12:18 2.5 14.67 147 16 Psc 23:36:23.2 +02:06:09 5.7 1.42 152 PPM 174165 23:31:06.7 +02:21:47 7.3 0.37 151 PPM 174144 23:30:20.2 +01:59:35 9.7 0.09 151 145452 23:30:42.4 +02:00:21 16.6 151 Positions are for J2000
Event circumstances last updated at 2024/05/05 03:32:22 UT
Marc W. Buie, Southwest Research Institute